Security Engineer, Threat Intelligence at Fluidstack | Austin, TX, US | Rezi

Security Engineer, Threat Intelligence at Fluidstack

Security Engineer, Threat Intelligence

Fluidstack · Austin, TX, US

2 weeks ago

Security Engineer, Threat Intelligence

Fluidstack · Austin, TX, US

15 days ago
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About the Role

Fluidstack is building civilization-scale infrastructure for AI, delivering massive amounts of compute faster than anyone else. We are seeking a security professional to build the entire security program from scratch, defending the most valuable and targeted artifacts in technology: AI model weights. This role offers the unique opportunity to secure the frontier of AI, with a threat surface measured in gigawatts.

Responsibilities

  • Track nation-state and advanced criminal actors targeting frontier AI infrastructure.
  • Develop intelligence from actor tooling, infrastructure patterns, and tradecraft to inform program detection and hunting.
  • Build and operate pipelines for collecting, enriching, and correlating indicators.
  • Integrate intelligence into the detection and agentic triage stack for instant operationalization.
  • Drive intelligence-led hunts across enterprise, cloud, identity, data center IT, and OT telemetry.
  • Convert hunt findings into high-fidelity detections authored as code.
  • Perform hands-on analysis of malware, phishing infrastructure, and attacker tooling.
  • Extract indicators, TTPs, and attribution signals to feed detection engineering and incident response.
  • Curate the inbound intelligence pipeline from commercial feeds, open source, government, and peer relationships.
  • Prioritize intelligence based on the program's threat model.
  • Build and maintain external intelligence-sharing relationships with ISACs, peer security teams, and government partners.

Requirements

  • Tracked specific nation-state or advanced criminal actors as a core job function.
  • Deep understanding of actor tooling, infrastructure, and targeting to anticipate future moves.
  • Production-quality Python (or similar) programming skills.
  • Experience building automation and data pipelines end-to-end.
  • Hands-on experience with malware, infrastructure, and log analysis.
  • Authored quality detection logic (YARA, Sigma, or SIEM-native queries) that shipped to production.
  • Experience collaborating with detection engineers and incident responders.
  • Ability to distill complex campaigns into actionable decisions and next steps.
  • Active network in the threat intelligence community (bonus).
  • Experience defending large-scale GPU or AI compute infrastructure, data centers, or multi-tenant cloud environments (bonus).
  • Experience applying LLMs or agentic tooling to accelerate collection, enrichment, and analysis (bonus).
  • Public research, conference talks, or open-source contributions in the CTI space (bonus).

Skills

  • Threat Intelligence
  • Python
  • Automation
  • Data Pipelines
  • Malware Analysis
  • Infrastructure Analysis
  • Log Analysis
  • Detection Engineering
  • Incident Response
  • YARA
  • Sigma
  • SIEM
  • LLMs
  • Agentic Tooling

Location

  • Remote

Work Type

  • Full-time

Experience Level

  • Senior

Salary/Compensations

  • $200,000 - $280,000 per year

Benefits

  • Competitive total compensation package (salary + equity)
  • Retirement or pension plan
  • Health, dental, and vision insurance
  • Generous PTO policy

About the Company

  • Fluidstack exists to make humanity more free by building civilization-scale infrastructure for AI.
  • We are singularly focused on delivering 10 to 100s of GWs of compute faster than anyone else, rethinking every layer of the stack.
  • We acquire power, design and build data centers, and operate them.
  • Speed and scale are our key differentiators.
  • We hire people who care deeply about the problem space.

Equal Opportunity

  • Fluidstack is an Equal Employment Opportunity Employer.
  • All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability and protected veterans’ status, or any other characteristic protected by law.
  • Fluidstack will consider for employment qualified applicants with arrest and conviction records pursuant to applicable law.